About: http://webisa.webdatacommons.org/142345674

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Available types of maps include those of the Oregon Territory, the state, cities and counties, and special subjects such as mining, forestry, railroads, coasts and rivers, soils, farmlands, land claims, Native Americans and explorations.
http://www.w3.org/ns/prov#wasQuotedFrom	ohs.org